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Finding the Fourth Proportional to 13,008, 19,402.40 and 10,903.62

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Solution

The fourth proportional to 13,008, 19,402.40 and 10,903.62 is: 16,263.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,008 : 19,402.40 = 10,903.62 : x
  2. Step 2: Convert to fraction form
    13,008/19,402.40 = 10,903.62/x
  3. Step 3: Cross multiply
    13,008x = 19,402.40 × 10,903.62
  4. Step 4: Simplify right side
    13,008x = 211,556,396.69
  5. Step 5: Solve for x
    x = 211,556,396.69/13,008
  6. Step 6: Final answer
    x = 16,263.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.